Mixed Lot: antique opal and diamond brooch, the oval cabochon opal within a surround of rose cut diamonds, all on a knife edge bar, 65mm long, an opal droplet necklace featuring nine round opals in cut down settings, an opal pin brooch, the round cabochon opal in a millegrain edge collet, 45mm long, together with a pair of oval shaped opal earrings with post fittings (all tested for gold)